Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL258762ApublicationCriticalpatent/NL258762A/xx
G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
G04D3/0056—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for bearing components
G04D3/0058—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for bearing components for bearing jewels
B—PERFORMING OPERATIONS; TRANSPORTING
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills
B—PERFORMING OPERATIONS; TRANSPORTING
B28—WORKING CEMENT, CLAY, OR STONE
B28D—WORKING STONE OR STONE-LIKE MATERIALS
B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
B28D1/146—Tools therefor
B—PERFORMING OPERATIONS; TRANSPORTING
B28—WORKING CEMENT, CLAY, OR STONE
B28D—WORKING STONE OR STONE-LIKE MATERIALS
B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
B28D5/02—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by rotary tools, e.g. drills
B28D5/021—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by rotary tools, e.g. drills by drilling
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Mining & Mineral Resources
(AREA)
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Perforating, Stamping-Out Or Severing By Means Other Than Cutting
(AREA)