photostat has definitions from the field of photography
1
[ noun ] (photography) a photocopy made on a Photostat machine

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photocopy

2
[ verb ] make a copy by means of a Photostat device

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photocopy

3
[ verb ] make a copy by means of a Photostat device

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photocopy

4
[ noun ] (trademark) a duplicating machine that makes quick positive or negative copies directly on the surface of prepared paper

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duplicator trademark

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