B23- MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR.235000013290 Sagittaria latifolia Nutrition 0.000 description 12.238000005553 drilling Methods 0.000 title claims abstract description 60.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by B Marberg filed Critical B Marberg Priority to US00237102A priority Critical patent/US3805394A/en Application granted granted Critical Publication of US3805394A publication Critical patent/US3805394A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US00237102A Inventor B Marberg Original Assignee B Marberg Priority date (The priority date is an assumption and is not a legal conclusion. Google Patents Hole pitch indicator for drilling bowling ballĭownload PDF Info Publication number US3805394A US3805394A US00237102A US23710272A US3805394A US 3805394 A US3805394 A US 3805394A US 00237102 A US00237102 A US 00237102A US 23710272 A US23710272 A US 23710272A US 3805394 A US3805394 A US 3805394A Authority US United States Prior art keywords hole ball pitch center stem Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US3805394A - Hole pitch indicator for drilling bowling ball US3805394A - Hole pitch indicator for drilling bowling ball

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