Source: YouTube/Online Mix Video
Patent Information
Publication number: US3485398 A
Patent Title: Tennis ball pick-up and collecting machine
Publication date: 23 Dec 1969
Filing date: 2 Oct 1967
Priority date: 2 Oct 1967
Inventors: Offner Maximilian
Original Assignee: Offner Maximilian
Publication number: US3485398 A
Patent Title: Tennis ball pick-up and collecting machine
Publication date: 23 Dec 1969
Filing date: 2 Oct 1967
Priority date: 2 Oct 1967
Inventors: Offner Maximilian
Original Assignee: Offner Maximilian
