C. A. Roper Books

The Complete Book of Locks Locksmithing
The Complete Book of Locks Locksmithing

By C. A. Roper

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Includes information on all the newest innovations in the locksmith trade, from basic locks to special locks on vending machines, mailboxes, security systems, as well as electronic locks; how to in...

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The Complete Book of Locks & Locksmithing
The Complete Book of Locks & Locksmithing

By C. A. Roper

Average: 0.00, 0 Ratings

Includes information on all the newest innovations in the locksmith trade, from basic locks to special locks on vending machines, mailboxes, security systems, as well as electronic locks; how to in...

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Handcuffs, U.S.
Handcuffs, U.S.

By C. A. Roper

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What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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