Titles written by John Grass:
Number of documents found: 3
- John Grass
Title: Friction in Horology
Parent Document ID: 7207 - Parent Document Title: Horological Science Newsletter, 1993, Vol. 2
Edition: 1993-2
Page or pages: 2
BHM No: 9011 - John Grass
Title: Friction in Horology
Parent Document ID: 7207 - Parent Document Title: Horological Science Newsletter, 1993, Vol. 2
Edition: 1993-1
Page or pages: 2
BHM No: 9003 - John Grass
Title: Irregular Weight Drop - Comments
Parent Document ID: 7208 - Parent Document Title: Horological Science Newsletter, 1994, Vol. 3
Edition: 1994-1
Page or pages: 21
BHM No: 9053
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