RQT-1†

RQT-1-1.jpg
RQT-1-2.jpg
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Example serials†

↑

RQT-2†

↑

RQT-3†

RQT-3-1.jpg
RQT-3-2.jpg
↑

Example serials†

↑

RQT-4†

RQT-4-1.jpg
↑

Example serials†

↑

RQT-5†

Quartz Timer RQT-5 testing & timing machine, circa 1975

RQT-5-1.jpg
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Example serials†


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