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Ultrasonic Cleaners

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On 6/10/2021 at 3:02 PM, jdm said:

Really? Maybe during the war it was the only thing available. Below a page from an early 1900 watchemaking book, benzine is the same product is still best fo degreasing, and post-ammonia rinsing. You will find the same guidance in the Bulova school text, etc. 


So benzine, equals lighter fluid:)

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