Carpet Bowls developed by Henselite

Today, I learned from the Henselite company (via Google) that "The Game of 4 Inch Indoor Biased Bowls was developed in 1956 by the Henselite Company". Mum and I guess they made it so that bowlers could play during winter - thus expanding their market - guessing that Henselite were a major supplier of bowling gear already to the outdoor market.