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結果 : why were locks invented
4:11

Leonardo da Vinci's GENIUS invention - Miter Locks

Sabin Civil Engineering
5,811,099 回視聴 - 2 年前
16:59

The Evolution of Keys and Locks: Unlocking History

Timeline of Innovations
3,069 回視聴 - 6 か月前
3:16

The History of Locks

EnlargeSecurity
16,697 回視聴 - 8 年前
6:43

How Is A Combination Lock Made? | How Do They Do It?

Discovery UK
127,918 回視聴 - 5 年前
2:27

A brief History of Locks

Idea On Loop
2,412 回視聴 - 6 年前
1:12

4,000 Years of Secrets: The Incredible History of Locks

The History of things
33 回視聴 - 3 週間前
4:47

How does a Combination Lock work?

Jared Owen
6,970,441 回視聴 - 5 年前
3:03

How a Lock Works

Canal & River Trust
272,225 回視聴 - 6 年前

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1:31

鍵屋トレーニング：安価な鍵が故障したとき | Mr. Locksmith™

Mr. Locksmith
2,354 回視聴 - 1 日前
10:35

[1299] Unpickable Locks From Stuff Made Here

LockPickingLawyer
13,193,550 回視聴 - 4 年前
14:10

(1602) Review: Locks & Keys Throughout the Ages

Bill Johnson
47,651 回視聴 - 5 年前

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4:58

[1289] この錠前は紛れもなく「ピッキングに強い」

LockPickingLawyer
7,189,273 回視聴 - 4 年前
8:44

How 1,000,000s of Locks Are Made by Hand Each Year | Popular Mechanics

Popular Mechanics
8,899 回視聴 - 2 年前
4:50

How Its Made: Combination Locks

HowItsMade
5,672 回視聴 - 11 年前
3:58

How to Make a Key That Unlocks All Locks

Inventor 101
7,605,856 回視聴 - 2 年前
3:05

How does a Pin Tumbler Lock work?

Jared Owen
4,783,277 回視聴 - 8 年前
3:48

Sudhaus Locks | Made in Germany - Handmade

DW News
5,621 回視聴 - 13 年前
0:23

How locks work - Animation

Stian Berg Larsen
250,232 回視聴 - 16 年前
0:15

Can a Bullet Unlock a Lock? Myth vs Reality Test

Vision Of America
26,258 回視聴 - 1 日前
3:22

How to make a tool that unlocks all locks like a key

Inventor 101
807,780 回視聴 - 2 年前