Swedish Model B2
Source: https://www.electroluxgroup.com/en/the-rise-and-fall-of-the-housewives-favorite-26778/
Excerpt from the page's written history:
"The Golden Age
"One of Electrolux’s missions was to make life easier for the housewife and taking proper care of the floors was one of the most exhausting and time- consuming tasks in the home. Therefore, in 1925 Wenner-Gren looked at the polishers on sale and immediately saw they left a lot to be desired.
"His engineers rose to the task of making improvements with vigour. Their solution was a revolutionary, triangular, triple brush system which gave a fine, glossy result and production began in 1927. Making a tough job a lot easier, the polisher was a product that greatly enhanced Electrolux’s reputation.
"This quote from a 1945 brochure makes it clear how important the polisher was in the company’s early history.
“'The product which after the vacuum cleaner has saved most time and energy is the floor polisher. It has made an enormous contribution to the company’s good reputation.'”
______________
The account may either be inaccurate or unclear. Did Mr. Wennergren or another invent the B2 in 1918; or did he invent the B3 in 1925?

Source: https://www.electroluxgroup.com/en/the-rise-and-fall-of-the-housewives-favorite-26778/
Excerpt from the page's written history:
"The Golden Age
"One of Electrolux’s missions was to make life easier for the housewife and taking proper care of the floors was one of the most exhausting and time- consuming tasks in the home. Therefore, in 1925 Wenner-Gren looked at the polishers on sale and immediately saw they left a lot to be desired.
"His engineers rose to the task of making improvements with vigour. Their solution was a revolutionary, triangular, triple brush system which gave a fine, glossy result and production began in 1927. Making a tough job a lot easier, the polisher was a product that greatly enhanced Electrolux’s reputation.
"This quote from a 1945 brochure makes it clear how important the polisher was in the company’s early history.
“'The product which after the vacuum cleaner has saved most time and energy is the floor polisher. It has made an enormous contribution to the company’s good reputation.'”
______________
The account may either be inaccurate or unclear. Did Mr. Wennergren or another invent the B2 in 1918; or did he invent the B3 in 1925?
