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- Prolon Bowl, 1950-1960 - After World War II, the Pro-Phy-Lac-Tic Brush Company expanded its product line from toothbrushes to items made from plastic resins. In 1955, building on the popularity of Melmac dinnerware (made with shatterproof, lightweight melamine), the company introduced its Prolon brand of dinnerware. This colorful line of dinnerware was designed by Irving Harper of the industrial design firm George Nelson Associates.

- 1950-1960
- Collections - Artifact
Prolon Bowl, 1950-1960
After World War II, the Pro-Phy-Lac-Tic Brush Company expanded its product line from toothbrushes to items made from plastic resins. In 1955, building on the popularity of Melmac dinnerware (made with shatterproof, lightweight melamine), the company introduced its Prolon brand of dinnerware. This colorful line of dinnerware was designed by Irving Harper of the industrial design firm George Nelson Associates.
- Melmac Dinner Service, circa 1960 - After World War II, the Pro-Phy-Lac-Tic Brush Company expanded its product line from toothbrushes to items made from plastic resins. In 1955, building on the popularity of Melmac dinnerware (made with shatterproof, lightweight melamine), the company introduced its Prolon brand of dinnerware. This colorful line of dinnerware was designed by Irving Harper of the industrial design firm George Nelson Associates.

- circa 1960
- Collections - Artifact
Melmac Dinner Service, circa 1960
After World War II, the Pro-Phy-Lac-Tic Brush Company expanded its product line from toothbrushes to items made from plastic resins. In 1955, building on the popularity of Melmac dinnerware (made with shatterproof, lightweight melamine), the company introduced its Prolon brand of dinnerware. This colorful line of dinnerware was designed by Irving Harper of the industrial design firm George Nelson Associates.
- Prolon Bowl, 1950-1960 - After World War II, the Pro-Phy-Lac-Tic Brush Company expanded its product line from toothbrushes to items made from plastic resins. In 1955, building on the popularity of Melmac dinnerware (made with shatterproof, lightweight melamine), the company introduced its Prolon brand of dinnerware. This colorful line of dinnerware was designed by Irving Harper of the industrial design firm George Nelson Associates.

- 1950-1960
- Collections - Artifact
Prolon Bowl, 1950-1960
After World War II, the Pro-Phy-Lac-Tic Brush Company expanded its product line from toothbrushes to items made from plastic resins. In 1955, building on the popularity of Melmac dinnerware (made with shatterproof, lightweight melamine), the company introduced its Prolon brand of dinnerware. This colorful line of dinnerware was designed by Irving Harper of the industrial design firm George Nelson Associates.