1:1 Frogs

Timeline for Palmer Plastics (800-198) The Visible Dissecting Frog

Leopard Frog (Rana pipiens) Female

Full history

 

Superior Plastics Inc.

Palmer Plastics

Educational Products

Renwal

Lindberg

1960

1963

1967

196x

1973

1989

2000

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Kits are shown on the timeline when year and origin are filled in.