Bowling balls can be costly investments, ranging anywhere from $50 up to near $300. Since there is no type of bowling equipment insurance, drilling protection effectively serves as insurance. Cost Drilling protection is often offered as a free add-on when purchasing a new bowling ball, but som...
US3329043 * May 17, 1965 Jul 4, 1967 Stanford Robert M Drilling machine for bowling ballsUS3329043 * 1965年5月17日 1967年7月4日 Robert M Stanford Drilling machine for bowling ballsUS3329043 * 1965年5月17日 1967年7月4日 Stanford Robert M Drilling machine for bowling balls...
Fixture for use in drilling and marking bowling ballsComplete Patent Searching Database and Patent Data Analytics Services.doi:US3415146JR. KENNETH K. SCHROEDER
MACHINE FOR DRILLING FINGER HOLES IN BOWLING BALLSRAYNA H. MCCORMICK
Machine for drilling finger holes in bowling ballsMCCORMICK RAYNA H.
US2948168 1958年6月24日 1960年8月9日 Rayna H Mccormick Machine for drilling finger holes in bowling ballsUS2948168 * Jun 24, 1958 Aug 9, 1960 Rayna H Mccormick Machine for drilling finger holes in bowling ballsUS2948168 Jun 24, 1958 Aug 9, 1960 Rayna H Mccormick Machine for drilling ...
United States Patent US2948168 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text