Lessons in horology /
Grossmann, Jules, 1829-1907,
Lessons in horology / by Jules Grossmann ... and Hermann Grossmann. Authoritzed translation by James Allan, Jr. ... volume1- - volumes : frontispiece, diagrams, 22 cm
volume 1. The principles of cosmography and mechanics relating to the measurement of time--motive force, mainsprings, trains, gearings, et cetera.
Clocks and watches.
Clocks and watches.
Theory General Switzerland Theoretical advanced Timekeeper (general)
Lessons in horology / by Jules Grossmann ... and Hermann Grossmann. Authoritzed translation by James Allan, Jr. ... volume1- - volumes : frontispiece, diagrams, 22 cm
volume 1. The principles of cosmography and mechanics relating to the measurement of time--motive force, mainsprings, trains, gearings, et cetera.
Clocks and watches.
Clocks and watches.
Theory General Switzerland Theoretical advanced Timekeeper (general)