How the Comptometer Works
6:48
Find in video from 00:13Introduction to the Comptometer
How the Comptometer Works
36K viewsJan 30, 2012
YouTubeMechanicalComputing
How to use a Comptometer mechanical calculator
5:01
Find in video from 00:18Introduction to the Comptometer
How to use a Comptometer mechanical calculator
1.7K viewsNov 7, 2023
YouTubeMirko Kulig
Comptometer 993s - Sumlock Electro Mechanical Adding Machine - Part Two - Demonstration - Retrotech
20:12
Find in video from 00:21Introduction to Comptometer 993s
Comptometer 993s - Sumlock Electro Mechanical Adding Machi…
2.4K viewsDec 5, 2020
YouTubeGrumpyTim
Comptometer 993s - Sumlock Electro Mechanical Adding Machine, Part One - Refurbishment - Retrotech
18:17
Find in video from 00:21Introduction and History of Comptometer
Comptometer 993s - Sumlock Electro Mechanical Adding Machi…
1.8K viewsNov 28, 2020
YouTubeGrumpyTim
A short history of the Comptometer
9:51
Find in video from 00:11The First Commercial Comptometer
A short history of the Comptometer
2.7K viewsDec 4, 2021
YouTubeJaap Scherphuis
The Mechanical Calculator That Powered Offices Before Electricity
0:39
The Mechanical Calculator That Powered Offices Before Electricity
146.1K views7 months ago
YouTubeMEKRA
1920 Comptometer Mechanical Calculator
18:48
Find in video from 03:17History of the Comptometer
1920 Comptometer Mechanical Calculator
88.2K viewsFeb 18, 2020
YouTubeTech Tangents
4:38
The Comptometer 992 mechanical calculator
4.5K viewsAug 5, 2023
YouTubeJaap Scherphuis
11:37
The Comptometer Super Totalizer, a mechanical calculator.
15.2K viewsApr 4, 2015
YouTubeJaap Scherphuis
10:07
Comptometer Arithmetic
44.2K viewsJun 28, 2015
YouTubeJaap Scherphuis
7:10
Find in video from 00:10Overview of the Comptometer Model F
Comptometer Model F Adding Machine Review / HowTo
13.2K viewsFeb 26, 2017
YouTubeChris Staecker
14:53
Find in video from 02:16Comptometer Style Adding Machine
Comptometer - Calculator Comparison
7.3K viewsJun 6, 2017
YouTubeJoe Van Cleave
6:26
The first and the last Sumlock calculator models
1.5K viewsJan 15, 2022
YouTubeJaap Scherphuis
6:40
A wooden Comptometer
1.4K views10 months ago
YouTubeJaap Scherphuis
3:00
The fastest adding machine: the Comptometer Model 7 from 1933
2.2K viewsNov 27, 2024
YouTubeOld Typerwriters and Calculators
21:58
Find in video from 00:09The Last Model Comptometer
Comptometer 3D11 Repair
554 viewsJul 23, 2021
YouTubebss1250
9:01
The COMPTOMETER (patented 1887)
582 viewsDec 30, 2018
YouTubeftey2000
10:08
The Sumlock mechanical calculator, and some advanced calculation te…
1.7K viewsJan 8, 2022
YouTubeJaap Scherphuis
15:02
Bubbles Whiting - Using Punch Cards - Hollerith and IBM
237.1K viewsFeb 12, 2016
YouTubeThe Centre for Computing History
10:29
Magnetic Flow Meter Explained | Working Principles
128.2K viewsJan 9, 2023
YouTubeRealPars
13:40
Friden STW 10 Mechanical Calculator Demo
161.2K viewsNov 3, 2014
YouTubeCuriousMarc
11:28
Evolution of the Calculator 2,000 BCE - 2020 | History of Calculator, …
64.4K viewsOct 10, 2020
YouTubeExplain Like I’m Five
12:59
Mechanical Micrometer Calibration and Measurement Accuracy - Metr…
31K viewsFeb 20, 2019
YouTubeMitutoyo America Corporation
4:56
How does a spectrophotometer work? CM-5 - Konica Minolta Sens…
28.7K viewsMay 11, 2015
YouTubeKonica Minolta Sensing Americas
1:08:46
A Glimpse At Our MEGA New Project 👀✨… & Exploring Our Cots…
52.7K views1 week ago
YouTubeJosie
3:08
Magnetic Flow Meter Technology Introduction
166.7K viewsFeb 16, 2016
YouTubeRosemount
13:59
How To Use Cronometer - Track Your Weight and Calories Beginne…
2.8K viewsJan 2, 2025
YouTubeGreg Leopold
18:47
Time Machine - Bell Punch Company - PLUS model T - Vintag…
1.3K viewsJul 3, 2020
YouTubeGrumpyTim
0:08
Comptometer operating
102 viewsJun 27, 2021
YouTubeSteve Daly
0:15
This Machine Was the Brain of Offices Before Computers Existed
6.8K views2 months ago
YouTubeStern Facts
See more videos
Static thumbnail place holder