Yes, the rewireable fuses were pretty much standard for domestic installations up until the last 20 years or so, although cartridge fuses (BS1361) and MCBs might have been used on upmarket systems. Wylex still manufactures replacement rewireable carriers for their standard range panels:
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The older style carriers were white porcelain with a different type of contact arrangement, but these went out of production years ago.

On the combined cooker control/socket, they've been around in the U.K. for decades. A long time ago, it was sometimes the case that the socket incorporated on the cooker unit (BS546 15A in the early days, BS1363 later) was the only one in the whole kitchen! It was most often used for ubiquitous British tea kettle, although sometimes the placement of the unit above the rear of the range didn't make for the best positioning of cords.

They're still obtainable and used, although modern kitchens are tending toward just a simple DP switch unit for the cooker now that a whole array of counter-top sockets is the norm.