Which company pioneered the first mail-order catalog specifically for laboratory equipment in 1934, revolutionizing access to scientific tools for researchers outside major institutions?

The scientific equipment retail sector revolutionized research capabilities throughout the 20th century. Major laboratory supply companies transformed how science is conducted by making specialized equipment accessible to researchers worldwide. This poll tests your knowledge about a pivotal moment in scientific retail history that democratized access to precision instruments and changed the landscape of scientific discovery.

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Fisher Scientific, making research-grade equipment available to smaller colleges and private researchers for the first time
Thermo Electron, introducing standardized glassware that could be ordered directly by laboratories without custom manufacturing
Sigma-Aldrich, creating the first comprehensive chemical reagent catalog with guaranteed purity standards
PerkinElmer, launching a spectroscopy instrument catalog that allowed remote facilities to order analytical equipment