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Inventor
BARTH MERLYN W
US
4 patents
⚠️ This page may combine multiple inventors who share the name “BARTH MERLYN W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHESTERFIELD HOLDINGS L L C
1 patent
US6854642B2
Feb 15, 2005
System for vending products and services using an identification card and associated methods
CHESTERFIELD HOLDINGS L L C
230 citations
93
DETSKY GROUP L P
1 patent
US6539282B2
Mar 25, 2003
Vending machine for vending age-restricted products using a credit card and associated methods
DETSKY GROUP L P
133 citations
93
CHESTERFIELD HOLDINGS LLC
1 patent
US6792334B2
Sep 14, 2004
Vending machine for vending age-restricted products using an authorization card and associated methods
CHESTERFIELD HOLDINGS LLC
82 citations
92
KOSEDNAR JOSEPH F
1 patent
US4711993A
Dec 8, 1987
Fraud-resistant manual magnetic reader-writer system for debit card use
KOSEDNAR JOSEPH F
35 citations
85