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Signature	Maker	Instruments	Comments	Location	References
FOUCHY, MR. GRANDJEAN DE	France, fl.1732-69,		invented the micrometer scale which was added by Le Maire Fils in 1741 to the telescopic quadrant, ADL-M186, which had been made by Philippe Claude Lebas, c.1675; Fouchy was a member of the Académie Royal des Sciences.	Paris.	Engelmann 1; Fox 1; Ronfort 1; Daumas 1; ADL; RSW.
FOUCHY, MR. GRANDJEAN DE	France, fl.1732-69,		invented the micrometer scale which was added by Le Maire Fils in 1741 to the telescopic quadrant, ADL-M186, which had been made by Philippe Claude Lebas, c.1675; Fouchy was a member of the Académie Royal des Sciences.	Paris.	Engelmann 1; Fox 1; Ronfort 1; Daumas 1; ADL; RSW.

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